Avoid dig errors if not connected to a network

2019-04-11 21:00:32 -07:00 · 2019-04-11 21:00:32 -07:00 · d113d710a7
commit d113d710a7
parent c4755124a0
1 changed files with 6 additions and 4 deletions
--- a/.linux_items/include/airootfs/etc/skel/.update_network
+++ b/.linux_items/include/airootfs/etc/skel/.update_network
@ -11,10 +11,12 @@ IP="$(ip a show scope global \
  | grep inet \
  | head -1 \
  | sed -r 's#.*inet ([0-9]+.[0-9]+.[0-9]+.[0-9]+.)/.*#\1#')"
-HOSTNAME="$(dig +noall +answer +short -x "$IP" \
-  | grep -v ';' \
-  | head -1 \
-  | sed 's/\.$//')"
+if [[ "${IP:+x}" ]]; then
+  HOSTNAME="$(dig +noall +answer +short -x "$IP" \
+    | grep -v ';' \
+    | head -1 \
+    | sed 's/\.$//')"
+fi

 # Set hostname
 if [[ "${HOSTNAME:+x}" ]]; then